Adjustable guide for hammers



S. PAUL.

MTABLE GUIDE FOR HAMMERS. APPLICATIDN FILED MAY 3,1911. RENEWED MAY28,1920.

1,352,62 1 PatentedSept. 14, 1920.

@ 'pie/z land omit!) STATES ADJUSTABLE GUIDE 150e, I 1

. srnnnnn lemon, or ramme, Mmnmnn.

ATEnT I Specification of Letters Patent. Patllted se'ptfi l l, 1920.

j, jpplippt ien ine t y a, 1917, Serial No. 166,132. Renewed may 251929.seria n aeaq'j,

To all whom/ it may concern Be it known that I, STEPHEN PAUL, a

citizen of thellnited States of America, re- 7 j at Lansing, inthecountv of Ingham an w er Michigan, have ihven'ted' cerfollowing isafspecification, reference being had therein. to "the accompanyingdrawne "This invention relates to adjustable guides for. 'reciprocablemembers, and has special reference to the guides in the'housing of ahydraulic or, steam hammer,

as us d f ssi ing urpose My jnventipn in its broadest aspect, involvesmeans for minutely adjusting guides and positively holding the sameagainst accidental displacement during the reciprocation of a member, asa hammer head,"between the guides.

V Specifically, my invention includes tapering members adapted forlaterally adjusting guides to compensate for wear and permit of theguides ,being adjusted so as to in 3111154111 a y incr ment of thereciprocable member therebetween, without any danger V ofa bindingaction or sticking of a hammer head between the guides. Associated Withthe tapering members are looking. devices that positively hold themembers in adjusted position, and my invention will be fully understoodwhen reference is had to the drawing, and the following detaildescription.

In the drawing,

Figure 1 is a front elevation of a portion of a steam hammer, partlybroken away and partly in section, showing the adjustable guides and themeans for adjusting said guides;

Fig. 2 is an enlarged horizontal sectional view of a portion of thehammer housing showing a guide adapted to be adjusted by a taperedmember;

Fig. 3 is a view of the inner face of a por tion of the housing;

Fig. 4 is an enlarged View of the detached tapered member;

Fig. 5 is an enlarged front elevation of a locking device for thetapered member;

Fig. 6 is a horizontal sectional. view of a portion of the lockingdevice, and

Fig. 7 is a rear elevation of the same.

In the drawing, 1 denotes the frames of a hammer housing and theconfronting wen" kn wii yp 99 9209.

r are es nsula a for pockets 2containing wear is. "s 3 for the uid s {9fe re pm a are a 'fi emae n f h e a seam T1 si is edes 4 have screw ingthrough openings 7 of the and said screw bolts have tapering hheads 8seated in the guides 4: so that should a screw bolt be injured oraccidentally broken,

it may be quickly removed, without discarding the guide held thereby.

At the outer-ends of the frame openin V 7 retina le e terswashers 1Q;said washers havi' lar portions lladapted'to engage 1n the seats 9. Thewashers ioinso' ave annular recesses 12 to receive cylindrical portion13 of nuts 11 screwed upon the bolts 6, and these nuts may ,be' adjustedto, lock fthe guides 4 after the same have been prdperly positioned. V j

The housing frames 1 above and beIQwthe th dj s d kinie si cesi 'e' ofare identical in constriiction,'Fdeem it only necessary to describe thedevices of one of the openings 15.

Each opening 15 is rectangular in cross section with a screwthreadedshank 17 protruding therefrom. Extending into the opening 15 is anon-rotatable washer 18 having a side extension 19. Screwed on thethreaded shank 17 is a nut 20 and the washer 18 and the nut 20 aresomewhat similar to the washer 10 and the nut 14 previously mentioned.The nut 20, however, has a ratchet portion 21 and adapted to engage theratchet portion is a spring pressed pivoted pawl 22 carried bv the sideextension 19 of the washer 18. The pivoted pawl 22 is normally held inengagement with the ratchet portion 21 of the nut 20 by a spring 23interposed between said pawl and a lug 24. on the side extension 19.Adjacent the pivoted pawl 22 is a pivoted cam member 25 and this cammember can be swung into engagement with the pawl 22 to hold said pawlout of engagement with the ratchet nut, with the spring 23 undercompression.

faces of'these frames are with" an pe ng M ssiaen w th. ass- 4 With theparts in this position, as illustrated in Fig. 5, the ratchet nut 20 canbe unscrewed, but when the ratchet nut is tightened, the cam member 25is swung out of engagement with the pawl 22, so that the pawl willengage the ratchet nut and hold it against counterclockwise rotation. Inother words, the ratchet nut is held in the position to which it isadjusted.

With ratchet nuts on the threaded shanks 17 of a tapered member, thetapered member can be shifted in the pocket 2 and in a transverseopening 26 provided therefor in the guide 4, and it is through themedium of the tapered member that the uide 4 can be shifted in and outof the poo et 2 so as to properly engage and guide the hammer head 5.

By using four of the tapered members 16 there may be a uniformadjustment of the guides, thus maintaining said guides in perfectparallelism to insure non-frictional mo ement of the hammer head betweensaid It will of course be understood that prior to adjusting the taperedmember 16 that the nuts 14 are loosened to allow sufficient play of thescrew bolt 6 in the opening 7 in order that the guides 4 can be moved,and after said guides have been properly adjusted relative to the housinframes 1, then the nuts 14 are tightene thus holding the guides 4against the tapered member 16 and cooperating therewith in preventingaccidental displacement of the guides during the reciprocation of thehammer head 5.

It is apparent that the tapered member 16 constitutes means in proximityto the ends of the guides for laterally adjusting the same within thepockets 2 of the hammer housing and that the screw bolts 6 and the nuts14 constitute locking means,'interposed between the tapered members andintermediate the ends of the guides 4, for holding said guidesafter'having been adjusted by the tapered members.

While in the drawings there is illustrated a preferred embodiment of myinvention, it is to be understood that the structural elements aresusceptible to such variations and modifications as fall within thescope of the appended claim.

What I claim is j The combination with a housing having frames providedwith pockets and rectangular openings, guides in the pockets of thehousin frames for a reciprocable member in the ousing, tapered membersin some of the frame openings and having screw bolts protruding therfromand adapted for adjusting said guides, and screw bolts carried by saidguides and protruding from the other openings and adapted for lockingsaid guides in adjusted positions, of means for adjusting all of saidscrew bolts, said means comprising washers having rectangular portionsto engage in the rectangular openings of said frames, ratchet nutsrotatable in said washers and screwed on said bolts, spring pressedpawls on said washers normally engaging said ratchet nuts, and cammembers on said washers adapted to be manually swung into engagementwith said pawls to hold said pawls out of engagement with said nuts.

In testimony whereof I afl'ix my signature in the presence of twowitnesses.

STEPHEN PAUL.

Witnesses CHARLES Bane, KARL H. BUTLER.

